[Qemu-devel] [PATCH 5/8] file-posix: Store BDRVRawState.reopen_state during reopen

[Kevin Wolf <kwolf@redhat.com>]

We'll want to access the file descriptor in the reopen_state while
processing permission changes in the context of the repoen.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/file-posix.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/block/file-posix.c b/block/file-posix.c
index ae57ba1fc6..6aaee1df16 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -144,6 +144,8 @@ typedef struct BDRVRawState {
     uint64_t locked_perm;
     uint64_t locked_shared_perm;
 
+    BDRVReopenState *reopen_state;
+
 #ifdef CONFIG_XFS
     bool is_xfs:1;
 #endif
@@ -952,6 +954,7 @@ static int raw_reopen_prepare(BDRVReopenState *state,
         }
     }
 
+    s->reopen_state = state;
 out:
     qemu_opts_del(opts);
     return ret;
@@ -978,12 +981,16 @@ static void raw_reopen_commit(BDRVReopenState *state)
 
     g_free(state->opaque);
     state->opaque = NULL;
+
+    assert(s->reopen_state == state);
+    s->reopen_state = NULL;
 }
 
 
 static void raw_reopen_abort(BDRVReopenState *state)
 {
     BDRVRawReopenState *rs = state->opaque;
+    BDRVRawState *s = state->bs->opaque;
 
      /* nothing to do if NULL, we didn't get far enough */
     if (rs == NULL) {
@@ -996,6 +1003,9 @@ static void raw_reopen_abort(BDRVReopenState *state)
     }
     g_free(state->opaque);
     state->opaque = NULL;
+
+    assert(s->reopen_state == state);
+    s->reopen_state = NULL;
 }
 
 static int hdev_get_max_transfer_length(BlockDriverState *bs, int fd)
-- 
2.20.1